Vacuum deposition method

ABSTRACT

A method for vacuum deposition which comprises coating on the surface of a substrate to be metallized an undercoating composition comprising a hydroxyl-containing vinyl polymer havng a hydroxyl number of 20 to 200 and 1.1 to 5.0 equivalents, per equivalent of the hydroxyl group in the vinyl polymer, of a polyisocyanate as a film-forming component, curing the coated film, and depositing a metal or its compound, especially highly anticorrosive metal or its compound, on the undercoat in vacuum.



